| Patents for H02K 37 - Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors (3,591) |
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| 05/27/1980 | US4205244 Micro stepping motor |
| 05/20/1980 | CA1078000A1 Stepping motor |
| 05/06/1980 | US4201929 Single phase stepping motor |
| 04/29/1980 | US4199931 Connection terminal construction for driving coils of electronic timepieces |
| 04/22/1980 | US4199699 Motor and drive for a timepiece |
| 04/22/1980 | US4199265 Motorless magnetically coupled stirrer |
| 04/22/1980 | CA1076197A1 Three step sequence motor |
| 04/15/1980 | US4198582 High performance stepper motor |
| 04/08/1980 | US4197488 Electrical machine |
| 03/25/1980 | CA1074394A2 Stepping motor using extended drive pulses and method |
| 03/25/1980 | CA1074393A2 Stepping motor using extended drive pulses and method |
| 02/26/1980 | US4190779 Step motors |
| 02/19/1980 | CA1071879A1 Rocking motor for low cost quartz |
| 01/29/1980 | US4186322 Electric rotary stepping motor |
| 01/29/1980 | US4186316 Shaped rotor teeth for stepping motors |
| 01/08/1980 | CA1069572A1 Stepping motor with stator pole extensions to provide magnetic detent |
| 10/31/1979 | EP0004995A1 Linear and rotary device |
| 10/30/1979 | CA1065379A1 Micro-miniature stepping motor |
| 09/19/1979 | EP0004138A1 A pulse operated electric motor |
| 09/18/1979 | US4167848 Driving device for an electric timepiece |
| 08/14/1979 | US4164696 Stepping motor excitation |
| 07/24/1979 | US4162418 Stepping motor for electronic clock |
| 05/15/1979 | US4155018 Multipolar step motor |
| 04/04/1979 | EP0001334A1 Transducer for an electronic timepiece |
| 03/13/1979 | US4144467 Pulse motor |
| 03/13/1979 | CA1050600A1 Stepper motor |
| 02/27/1979 | US4141210 Bipolar stepping motor |
| 02/06/1979 | US4138617 Single phase stepper motor |
| 01/16/1979 | US4135119 Limited rotation motor |
| 12/19/1978 | CA1044752A1 Rotary stepper motor and method of operation |
| 12/12/1978 | US4128992 Rocking motor for low cost quartz watch |
| 11/28/1978 | US4127802 High torque stepping motor |
| 11/21/1978 | US4126797 Electromagnetic driving device |
| 11/21/1978 | US4126796 Miniature reversible motor |
| 10/31/1978 | US4123675 Inertia damper using ferrofluid |
| 09/26/1978 | US4117356 Rotor for stepping motor |
| 09/19/1978 | US4115714 Stepping motor |
| 09/19/1978 | US4115713 Rotor bias means for miniature watch motors or the like |
| 09/12/1978 | US4112671 Pulse motor driving system for use in a timepiece |
| 09/05/1978 | US4112319 Synchronous motor with heterogeneously pitched teeth |
| 08/15/1978 | US4107559 Miniature motor |
| 08/08/1978 | US4104859 Reversal preventing device of electric clock |
| 07/25/1978 | US4103191 Step motor |
| 07/11/1978 | US4100473 Electric stepper motors |
| 07/04/1978 | US4099106 Composite pulse motor for a timepiece |
| 06/13/1978 | US4095161 Variable stepping-angle synchronous motor |
| 06/13/1978 | US4095130 Synchronous motor |
| 05/09/1978 | US4088909 Stepping motor for timekeeping mechanism |
| 05/02/1978 | US4087709 Electric rotating machine |
| 03/28/1978 | US4081703 Electric motor having toothed pole pieces |
| 03/21/1978 | US4080540 Low-powdered stepping motor |
| 03/14/1978 | US4079279 Electrical micromotor |
| 02/21/1978 | US4075540 Stepping motor for timepiece |
| 02/21/1978 | US4075539 Step-by-step reciprocating mechanism |
| 02/21/1978 | US4075518 Micro-miniature stepping motor |
| 01/24/1978 | US4070592 Three step sequence motor |
| 01/03/1978 | US4066947 Stepping motor for electronic timepiece |
| 12/27/1977 | US4065685 Interpolating step motor system with reduction drive interface |
| 10/25/1977 | US4055785 Stepping motor for electronic timepiece |
| 09/20/1977 | US4049985 Damping device for a stepper motor |
| 09/13/1977 | US4048548 Stepping motor |
| 09/13/1977 | US4048531 Variable reluctance stepper motor |
| 08/30/1977 | US4045696 Rotor stator assembly for a low inertia stepping motor |
| 08/23/1977 | US4044291 Electric stepper motors |
| 08/09/1977 | US4041336 Single phase stepper motor |
| 07/26/1977 | US4037400 Drive device for electric clock |
| 07/19/1977 | US4037122 Linear actuator |
| 07/05/1977 | US4034247 Structure for synchronous motor, especially stepper motor |
| 06/21/1977 | US4031419 Self-starting synchronous and stepping motor having a permanent magnet rotor |
| 06/14/1977 | US4029977 Rotary stepper motor and method of operation |
| 05/24/1977 | US4024732 Device for the mechanical filtering of the movement transmitted by a step motor |
| 05/03/1977 | US4021689 Stepping motor |
| 04/19/1977 | US4019110 Stepping motor having rotational and counter rotational magnetic field control |
| 03/15/1977 | US4012652 Unidirectional self-starting electrical motors with shaded poles and shaded magnetic shunt |
| 02/01/1977 | US4006375 Stepping motor |
| 12/28/1976 | US4000452 Multiphase variable-stepping-angle synchronous motor |
| 12/21/1976 | US3999107 Self-starting synchronous motor |
| 12/21/1976 | US3999090 Stepper motor |
| 11/09/1976 | US3991332 Stepping motor |
| 11/02/1976 | US3989967 Pulse motor |
| 10/12/1976 | US3984972 Transducer for quartz crystal timepiece |
| 10/05/1976 | US3984711 Variable reluctance step motor with permanent magnets |
| 09/07/1976 | US3979616 Unipolar rotary step motor |
| 08/31/1976 | US3978355 Damping in electric clock |
| 07/13/1976 | US3969642 Step motor for electronic timepiece |
| 05/18/1976 | US3958139 Electric motor with bridge-type magnetic circuits |
| 05/11/1976 | US3956650 Laminar-rotor synchronous inductor motor |
| 04/13/1976 | US3950686 Series redundant drive system |
| 04/13/1976 | US3950663 Inline motor iron and windings |
| 04/06/1976 | US3949251 Stepping motor for a timepiece |
| 03/23/1976 | US3946259 Electric stepping motors and remote registers |